Vim li cas thiaj xaiv Titanium Alloys

TAW QHIA

Titanium tau raug lees paub tias yog lub caij (Cim Ti; atomic number 22; thiab atomic weight 47.9) tsawg kawg yog 200 xyoo. Txawm li cas los xij, kev lag luam tawm ntawm titanium tsis pib txog 1950's. Lub sij hawm ntawd, titanium tau lees paub txog nws txoj kev xav tau qhov tseem ceeb xws li ib qho kev hnav khaub ncaws, siab zog ua tau zoo heev uas yog ib qho hlau ua rau cov tseem ceeb, kev kawm siab, xws li dav hlau tshuab thiab airframe khoom. Tshaj tawm hauv ntiaj teb no txawv txav, "Space Age" hlau thiab nws cov phaj nyaj muaj txij li loj tshaj 50 lab phaus txhua xyoo. Cov hlau ntau dua thiab cov khoom tsim tau ntau lawm thiab cov khoom ua tau zoo dua, kev tsim khoom tsim kho, thiab lub khw lag luam uas muaj vastly expansion muaj dramatically txo qis cov nqi ntawm titanium khoom. Niaj hnub no, titanium alloys muaj ntau thiab yooj yim muaj cav hlau uas sib tw ncaj qha nrog stainless thiab steels, copper alloys, nickel-based alloys thiab composites.


Raws li lub cuaj feem ntau caij nyob rau hauv lub ntiaj teb Lub Crust thiab plaub tshaj feem ntau cov hlau, tam sim no thoob ntiaj teb ntawm feedstock ore rau tsim hlau titanium yog zoo li unlimited. Qhov tseem ceeb tsis thoob ntiaj teb daim txhuam cev, yaj thiab ua kom muaj peev xwm ua rau titanium tuaj yeem ua raws li kev loj hlob mus rau kev ua haujlwm tshiab, ntim ntaub ntawv. Ntxiv rau nws qhov kev coj ua zoo txaus siab rau cov kev siv aerospace, titanium's exceptional corrosion uas muab tau los ntawm nws cov yeeb yaj kawv tiv thaiv oxide tau txhawb nws daim ntawv thov hauv seawater, marine, brine thiab txhoj puab muaj tshuaj lom neeg tshaj li tsib caug xyoo dhau los. Niaj hnub no, titanium thiab nws cov phom yog siv rau cov aerospace, industrial thiab consumer applications. Tsis tas li ntawd, cov cav ntoo thiab cov airframes, cov titanium kuj siv rau hauv cov kev siv hauv qab no: cov cuaj luaj, cov khoom siv tshuaj thiab cov khoom tsim petrochemical, cov khoom siv roj carbon ntau thiab kev ua haujlwm, kev tsim hluav taws xob, kev sib tsoo, nuclear pov tseg, cov dej hiav txwv sib sib zog nqus dej hiav txwv, thiab Hiav Txwv Nkoj Cheebtsam nrog lwm tus.


Cov Khoom Txaus Nyiam Txaus Nyiam

Titanium thiab nws cov alloys tuaj yeem muaj kev sib txuam ua ke ntawm cov khoom siv thiab lub zog thiab kev tiv thaiv corrosion uas tau ua rau lawv xav tau rau hav dej, industrial, chemical thiab kev lag luam.


Corrosion thiab Eco Kaus

Titanium alloys muaj exceptional tsis kam mus rau ntau qhov chaw ntawm cov tshuaj hauv chaw thiab tej yam kev mob uas muab los ntawm ib qho kev pom tsis pom tab sis tsis tshua muaj kev tiv thaiv qhov tob oxide zaj duab xis. Qhov yeeb yaj kiab, uas yog feem ntau TiO2, yog qhov zoo heev, tuav, thiab sib haum. Nws tuaj yeem kho thiab kho nws tus kheej zoo dua yog tias mechanically puas yog me me ntawm cov pa oxygen lossis noo noo muaj nyob rau hauv qhov chaw. Titanium paub txog nws txoj siab mus rau qhov chaw tua kab thiab kev ntxhov siab nyob rau hauv aqueous chlorides. Titanium alloys kuj raug lees paub rau lawv txoj kev siab tawv


Lwm yam khoom zoo nkauj

Titanium lub cev tsawg, uas yog 56% rau cov hlau thiab ib nrab ntawm cov npauj npaim thiab tooj liab txhais tau ob zaug kom ntau npaum li ntau cov hlau ntim ib qhov hnyav thiab ntau ntau cov khoom siv zoo nkauj thaum uas tawm tsam lwm cov hlau hauv qhov dav. Ua ke nrog lub zog dua, qhov no txhais tau tias yog sib zog dua thiab / lossis me zog rau ob qho tib si zoo li qub thiab sab nraud.


Titanium alloys muaj ib lub cev tsawg ntawm elasticity uas yog ib nrab ntawm cov hlau thiab nickel alloys. Qhov no ua kom muaj zog (kev ywj pheej) txhais tau hais tias txo qis thiab kev nyuab siab cyclic, ua kom zoo zoo rau cov kwj deg, lwj, lub cev cog hniav, kev kho hniav, kev lag luam tawm ntawm huab cua, cov kav hlau, thiab cov khoom siv ua kis las. Titanium qhov ua muaj mob tsis yog (tsis muaj mob, nonallergenic thiab tag nrho biocompatible) nrog lub cev tau tsav nws txoj kev siv dav hauv cov khoom nruab nrab thiab cov hniav nyiaj hniav kub. Stemming los ntawm kev sib xyaw ua ke ntawm siab zog, tsis tshua muaj modulus thiab tsawg ceev, titanium alloys yog intrinsically ntau resistant poob siab thiab tawg puas tshaj lwm cov ntaub ntawv engineering. Cov kev phom sij no muaj coefficients ntawm thermal expansion uas yog tsawg dua cov neeg ntawm txhuas, ferrous, tooj liab thiab tooj liab. Qhov no tsis tshua muaj expansivity pub rau kev txhim kho kev sib tw nrog cov khoom siv iav thiab iav thiab minimizes warpage thiab qaug zog thaum thermal cycling. Titanium yog nonmagnetic tseem ceeb thiab zoo tagnrho cov electromagnetic cuam tshuam yuav tsum tau minimized. Thaum eradicated, titanium thiab nws cov isotopes pom tsis tshua muaj hluav taws xob ib nrab hnub thiab yuav tsis nyob twj ywm "kub" rau ntau tshaj li ob peb teev.


Cov Khoom Kub Tshav Kub Hloov

Titanium tau ua kom zoo nkauj thiab tsim kom muaj cua sov hloov khoom siv hauv plhaub / raj, phaj / thav duab, thiab lwm hom kev sib hloov rau cov cua kub cua txias lossis txias, tshwj xeeb tshaj yog nyob rau hauv cov dej txias. Tshaj tawm ntawm kev hloov hluav taws xob tuaj yeem ua kom zoo dua vim yog cov nram qab no tseem ceeb ntawm titanium:


  • Qhov tshwj xeeb tsis pom zoo rau corrosion thiab fluid erosion

  • Ib qho tsis tshua muaj nyias, hluav taws xob oxide nto zaj duab xis

  • Lub zog thiab tus npliag deg

  • Ib ntu uas txhawb nqa hws

  • Qhov zoo thermal conductivity

  • Lub zog zoo


Txawm hais tias cov titanium tsis muaj lub thermal conductivity hauv qab ntawd cov tooj los yog txhuas, nws cov conductivity tseem yog kwv yees li 10- 20% siab dua li cov xim tsis muaj hlau phom. Nrog nws lub zog zoo thiab muaj peev xwm ua kom muaj kev tiv thaiv kev txhuam thiab kev yaig ntawm ntws, cua ntshiv cua, titanium phab ntsa yuav thim qhov nqes los ua kom txo cov cua sov hloov mus (thiab them nqi). Titanium tus cwj pwm tsis txig, ua tsis taus, nyuaj-rau-adhere rau qhov chaw tuav tswj kom muaj kev tu ntau dua lub sijhawm. Qhov nto no txhawb cov kua qoob loo los ntawm cov pa dej ntshawb, ua kom qhov ntsuas cov cua txias kom txias / condensers piv rau lwm yam hlau raws li qhia.